On 27.05.2024 2:55 PM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> Add a 20MB reserved memory region for use by SCM calls.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sa8775p.dtsi | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 31de73594839..c183527452d7 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -208,6 +208,7 @@ core3 {
> firmware {
> scm {
> compatible = "qcom,scm-sa8775p", "qcom,scm";
> + memory-region = <&tz_ffi_mem>;
> };
> };
>
> @@ -418,6 +419,12 @@ cdt_data_backup_mem: cdt-data-backup@91ba0000 {
> no-map;
> };
>
> + tz_ffi_mem: tz-ffi@91c00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x0 0x91c00000 0x0 0x1400000>;
How does that size relate to
+ pool_config.max_size = SZ_256K;
in patch 3?
Konrad
